Pyrometry in the Reaction Zone of PETN- And RDX-based Polymer Bound Explosives

Will P. Bassett, Belinda P. Johnson, Lawrence Salvati, Dana D. Dlott

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Initial hot spot temperatures and temperature evolutions for PETN and RDX-based polymer-bound explosives under shock compression by laser-driven flyer plates at speeds from 1.5 - 4.5 km/s are presented. The PBX formulations studied here consist of either pentaerythritol tetranitrate (PETN) or 1,3,5-trinitro-1,3,5-triazinane (RDX) in a 80/20 wt.% mixture with a silicone elastomer binder. The temperature dynamics and are modeled well by a single exponential cooling term for all impact velocities in both PETN and RDX, while RDX at low velocities additionally requires a single Gaussian heating term to capture its slow energy release. When shocked to near the characteristic von Neumann spike pressure cooling rates rapidly increase and the heating term is no longer required in RDX due to heat generation being out competed by heat loss and adiabatic expansion of product gasses.

Original languageEnglish (US)
Title of host publicationShock Compression of Condensed Matter - 2019
Subtitle of host publicationProceedings of the Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter
EditorsJ. Matthew D. Lane, Timothy C. Germann, Michael R. Armstrong, Ryan Wixom, David Damm, Joseph Zaug
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735440005
DOIs
StatePublished - Nov 2 2020
Event21st Biennial American Physical Society Conference on Shock Compression of Condensed Matter, SCCM 2019 - Portland, United States
Duration: Jun 16 2019Jun 21 2019

Publication series

NameAIP Conference Proceedings
Volume2272
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference21st Biennial American Physical Society Conference on Shock Compression of Condensed Matter, SCCM 2019
Country/TerritoryUnited States
CityPortland
Period6/16/196/21/19

ASJC Scopus subject areas

  • General Physics and Astronomy

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